178 Miss G. Ricardo on the Asilide. 
The hairs below the antenne are white, not black as 
Loew says, and the hairs on the abdomen are chiefly white, 
not black. 
Promachus dorso, W\k. 
List Dipt. ii. p. 397 [-Aszlus] (1849) ; et yii., Suppl. 3, p.599[Trupanea] 
(1855). 
? Astlus rubripes, Macq. Hist. Nat. Dipt. i. p. 310 (1834). 
Type (female) from S. Africa (Dr. Smith), 44, 6. 
Type (female) in very bad condition, appears to be a species 
not described by any other author except Macquart, who 
described Asilus rubripes, but states it has three submarginal 
- cells, so that it is probably a Promachus species, and the 
description such as it is suits this Walker type, which is 
rather large, 25 mm., with almost wholly red legs; the 
femora alone have a dark stripe below, and short white 
pubescence on the legs. Moustache on the reddish face is 
composed of reddish bristles with some black ones inter- 
mixed. Palpi with reddish-yellow hairs and some black 
ones at the apex. Antenne blackish, but the first two joints 
chiefly reddish with yellow hairs on underside and black 
ones on upper side. Forehead with yellow pubescence. 
Hind part of head with short stout reddish-yellow bristles. 
Thorax with black bristles and reddish-yellow hairs on 
posterior border. Scutellum with a double row of reddish 
bristles and some yellow hairs, also four or five black bristles. 
Abdomen with the usual spots and short yellow pubescence. 
Ovipositor short. Wings clear, with reddish-yellow veins. 
Macquart gives the size of his species as 22 mm. 
Table of Promachus Species from Central and East Africa. 
1, Abdomen with tuft-like hairs, very apparent 
on the basal segments. .......0e cee eeeee 2. 
Abdomen with no such tufts ............ 3. 
2. Nearly allied to P. fasciatus, F. Bristles 
on scutellum chiefly yellow .........+.. zanthotrichus, Bezzi. 
8. Legs blackish, only the tibiz yellowish 
externally trite tele oe. see eiaat ble 4, 
4, Pubescence on legs and the moustache yel- 
low. Scutellum with black bristles and 
Vellow Waits 2a) ctor owe ae Ce ee ee ee obscurtpes, sp. 0. 
5. Legs reddish or yellow; femora sometimes 
with a black stripe. 5). c)20 24 ae bw eles 6. 
6. Antenne usually partly red..........0005 ‘@ 
Antenne wholly blackish..............-- ag; 
. Genitalia with tuft of white hairs. Last 
segment of abdomen produced below in the 
MAIO wees Gh’ Fok ues wie keith he 8. 
“I 
